Survive Lava for Animals Class Picker

How do you read the Survive Lava for Animals roster picker?

Walk the tree in order. Do not skip to a late unlock because the shop model looked rare.

1. Grass — First steal stage. Short routes and the place to learn the egg prompt.
2. Desert — First power spike after Grass. Better eggs, longer heat-themed paths.
3. Beach — Longer mid-early routes where a ledge can close as lava rises.
4. Underwater — Midgame stage where jumps and vertical pathing cause most deaths.
5. Arctic — Mid-late chokepoints. Late grabs from Desert timing fail here.
6. Jungle — Dense paths and more player traffic on the way to Ancient.
7. Ancient — High-risk premium stage. A saved hatch can reshape the pen.
8. Mythical — Current top stage on this ladder.
9. Treadmill — Official trainer. Standing on it raises Speed and jump.
10. Trampoline — Secondary trainer for jump-heavy routes.
11. Animal pen — Base slots where hatched animals earn, including offline.
12. Trail shop — Movement upgrades you buy when Speed alone still loses the return.
13. Eggs — Objects you grab in a biome and hatch at base into earning animals.
14. Lava — Rising hazard. If it touches you, the egg you have not placed is lost with the run.

What is on the published Survive Lava for Animals roster table?